\\[-1.8ex] Temperature & -0.0057 & 0.009 & 0.00036 & -0.0063 & -0.016 \\
 & (0.0036) & (0.0084) & (0.0073) & (0.0042) & (0.023) \\
\\[-1.8ex] Precipitation & 0.0021 & 0.022$^{***}$ & 0.01$^{*}$ & -0.019$^{***}$ & -0.018$^{**}$ \\
 & (0.0041) & (0.0062) & (0.0058) & (0.0065) & (0.008) \\
\\[-1.8ex] Slope & 0.0089$^{***}$ & 0.0096$^{**}$ & 0.0037 & 0.019$^{***}$ & 0.029$^{***}$ \\
 & (0.003) & (0.0045) & (0.0047) & (0.0043) & (0.0059) \\
\\[-1.8ex] Elevation & -0.001 & -0.017$^{***}$ & -0.0048 & -0.0016 & -0.033$^{***}$ \\
 & (0.003) & (0.0061) & (0.0039) & (0.0051) & (0.014) \\
\\[-1.8ex] Productivity & 0.018$^{***}$ & 0.026$^{***}$ & 0.033$^{***}$ & 0.027$^{***}$ & 0.026$^{***}$ \\
 & (0.0029) & (0.0056) & (0.0047) & (0.0043) & (0.0055) \\
\\[-1.8ex] Flow accumulation & 0.0058$^{**}$ & 0.0049 & 0.0075$^{***}$ & 0.0043 & 0.0027 \\
 & (0.0026) & (0.0037) & (0.0027) & (0.0035) & (0.0038) \\
\\[-1.8ex] River density & 0.0046 & 0.0067$^{**}$ & 0.0057$^{*}$ & 0.0072$^{***}$ & 0.0078$^{***}$ \\
 & (0.0029) & (0.003) & (0.0029) & (0.003) & (0.0031) \\
\\[-1.8ex] Total area & -0.0024 & -0.016$^{***}$ & -0.0083$^{***}$ & -0.0058$^{**}$ & -0.011$^{***}$ \\
 & (0.0024) & (0.0028) & (0.0024) & (0.0025) & (0.0027) \\
\\[-1.8ex] Distance to navigated rivers & -0.0095$^{***}$ & -0.024$^{***}$ & -0.012$^{***}$ & -0.011$^{***}$ & -0.018$^{***}$ \\
 & (0.0038) & (0.0037) & (0.0038) & (0.0042) & (0.0035) \\
\\[-1.8ex] Distance to lakes & -0.0039 & -0.00093 & -0.0044 & -0.011$^{***}$ & -0.018$^{***}$ \\
 & (0.0035) & (0.0026) & (0.0034) & (0.0042) & (0.0035) \\
\\[-1.8ex] Distance to shoreline & -0.014$^{***}$ & -0.0066 & -0.015$^{***}$ & -0.0045 & 0.00056 \\
 & (0.0038) & (0.0047) & (0.0062) & (0.0037) & (0.0024) \\
 & & & & &  \\
\hline \\[-1.8ex] \\[-1.8ex] 
State Fixed Effects      &  & \checkmark &  & & \checkmark \\
Smooth Location Controls &  &  & \checkmark & & \checkmark \\
Geoclimatic Controls     &  &  &  & \checkmark & \checkmark \\
